SugaROx Targets 20% Tomato Yield Boost in California

The California tomato industry, long the global benchmark for production, is about to become the testing ground for a new frontier in agricultural science: precision metabolic signaling. UK-based agri-tech venture SugaROx has been selected for the inaugural H.A.R.V.E.S.T. AgTech cohort, a move that will see their proprietary “caged sugar” biostimulant transition from successful European glasshouse trials into the demanding environment of California’s Central Valley.

Unlike traditional biostimulants—which often rely on complex, sometimes unpredictable mixtures of seaweed extracts or microbes—SugaROx utilizes a “single-molecule” approach. At the heart of their technology is trehalose-6-phosphate (T6P), a natural signaling molecule that acts as the plant’s internal “fuel gauge.” Essentially, T6P tells the plant how much energy it has and how it should spend it.

The science, backed by 25 years of research at the University of Oxford and Rothamsted Research, focuses on a biological pivot. T6P works by inhibiting SnRK1, an enzyme that typically signals energy scarcity. When SnRK1 is active, the plant enters a “survival mode,” prioritizing maintenance over growth. By applying a precision dose of T6P, SugaROx effectively flips a metabolic switch, moving the plant from a state of “famine” to “feast.” This re-programming increases what agronomists call “sink strength”—the plant’s ability to aggressively allocate carbon and nutrients into developing fruit rather than vegetative growth.

However, getting this molecule into the plant has historically been the primary hurdle. Natural T6P is highly charged, making it unable to pass through the waxy surface of a leaf. SugaROx’s breakthrough is a proprietary “chemical caging” technology. The molecule is wrapped in a neutral “cage” that allows it to be absorbed via a standard foliar spray. Once inside the plant’s cells and exposed to natural sunlight, the cage is cleaved off, releasing the active T6P exactly where it can influence crop metabolism.

While the company’s early commercial efforts have focused on broadacre crops like wheat and soy, the potential for high-value specialty crops is even more striking. Controlled trials have already demonstrated that this metabolic intervention can increase tomato yields by up to 20%. These results have caught the attention of U.S. partners, leading to the current collaboration with UC ANR Innovate and F3 Local.

As SugaROx prepares for a Series A investment round, the California field trials will serve as the definitive proof of concept for the North American market. If the results from the Central Valley mirror the glasshouse success, it could signal a shift toward more consistent, science-based inputs that allow growers to manage crop performance with the same precision they currently apply to irrigation and pest control.

“We see single-molecule formulations as an important evolution in the biostimulants sector,” says Ramsay Huntley, the H.A.R.V.E.S.T. AgTech programme director. For California tomato growers facing increasingly volatile climate conditions, this “metabolic re-programming” may offer a vital new tool to secure productivity and resilience in the seasons to come.

While SugaROx is currently focused on its high-profile California field trials, the company is looking to replicate this success closer to home. Currently, there are no field trials in place for the tomato sector in Europe; however, the company is actively seeking to connect with European producers, distributors, and research institutions interested in trialing the technology locally.

If you are a European tomato grower or industry partner interested in exploring how ‘caged sugar’ technology can impact your yields, SugaROx is open to new collaborations.

Source: SugaROx